Forming and Solving Equations

The sizes of the angles, in degrees, of a triangle are $5 x - 15$ , $2 x + 10$ and $3 x + 5$

A triangle with three interior angles labeled: 5x - 15, 2x + 10, and 3x + 5.

Work out the value of $x$ .

[3]

The sizes of the angles, in degrees, of a triangle are $5 x - 15$ , $2 x + 10$ and $3 x + 5$

A triangle with three interior angles labeled: 5x - 15, 2x + 10, and 3x + 5.

Work out the value of $x$ .

[3]

Forming and Solving Equations Questions